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70 lines
2.2 KiB
70 lines
2.2 KiB
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200704-01">
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<title>Asterisk: Two SIP Denial of Service vulnerabilities</title>
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<synopsis>
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Asterisk is vulnerable to two Denial of Service issues in the SIP channel.
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</synopsis>
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<product type="ebuild">asterisk</product>
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<announced>2007-04-02</announced>
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<revised count="01">2007-04-02</revised>
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<bug>171467</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/asterisk" auto="yes" arch="*">
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<unaffected range="ge">1.2.14-r2</unaffected>
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<unaffected range="rge">1.0.12-r2</unaffected>
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<vulnerable range="lt">1.2.14-r2</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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Asterisk is an open source implementation of a telephone private branch
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exchange (PBX).
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</p>
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</background>
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<description>
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<p>
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The Madynes research team at INRIA has discovered that Asterisk
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contains a null pointer dereferencing error in the SIP channel when
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handling INVITE messages. Furthermore qwerty1979 discovered that
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Asterisk 1.2.x fails to properly handle SIP responses with return code
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0.
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</p>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could cause an Asterisk server listening for SIP
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messages to crash by sending a specially crafted SIP message or
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answering with a 0 return code.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All Asterisk users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose net-misc/asterisk</code>
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<p>
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Note: Asterisk 1.0.x is no longer supported upstream so users should
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consider upgrading to Asterisk 1.2.x.
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</p>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1561">CVE-2007-1561</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1594">CVE-2007-1594</uri>
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</references>
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<metadata tag="submitter" timestamp="2007-03-20T20:55:47Z">
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jaervosz
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</metadata>
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<metadata tag="bugReady" timestamp="2007-04-02T16:33:39Z">
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jaervosz
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</metadata>
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</glsa>
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